Lamp-post cap



(No Model.)

A. P. STORES.

LAMP POST GAP.

No. 571,868. Patented Nov. 24, 1896.

W Hill] a {U Illllllllllll fi 27306 7:, Zara" Q QAM UNITED STATES PATENTEricE.

AARON P. STORES, OF OYVEGO, NE\V YORK.

LAM P-POST CAP.

SPECIFICATION forming part of Letters Patent No. 571,868, dated November24, 1896.

Serial No. 589,732. at modelfi To all whom it may concern:

Be it known that I, AARON P. STORES, of

I Owego, in the county of Tioga, State of New York, have inventedcertain new and useful Improvements in Lamp-Post Caps; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, forming a partof this specification, and the letters of reference marked thereon.

Lamp-posts and street-lamps as now commonly made are in the form of ahollow shell adapted to support at the upper end the base of the head orlamp-frame proper, while the pipe through which the gas or illuminantflows passes up through the hollow shell into the lamp-body and supportsthe tip or burner proper. Vith such a structure it is seldom that thepipe and burner occupy an exactly central position in the body, whichdefect, while apparent, does not render the structure very unsightlywith the ordinary fisl1- tail burner, but when a \Velsbach burner isemployed this is different, and it is highly desirable, if notessential, that the burner should be centrally located and occupy avertical position; and it is the object of my present invention toprovide a device for centering the pipe in the head or lamp and holdingit permanently in such central position even though the head orla1np-frame is itself not accurately centered on the end of the post orsupportingcasing.

Referring to the accompanying drawings, Figure 1 is a vertical section,partly in elevation, of the top of an ordinary lamp-post andboulevard-lamp, such as is illustrated, for instance, in mycontemporaneous application, Serial No. 571,905, and showing theapplication of my present invention. Fig. 2 is a bottom plan view of theadjusting device detached. Fig. 3 is a perspective view showing the twoparts of the adjusting device separated, and Fig. a is a side elevationwith the parts assembled.

Like letters of reference in the several figures indicate the sameparts.

The letter A indicates the top of the lamppost, which may be of ordinaryconstruction, with a central bore for the passage of the pipe or conduitfor the illuminant, (lettered B.) The base of the lamp-frame O issecured to the outside of the lamppost in any suitable manner, and asillustrated this lamp-fra1ne is adapted to support a boulevardlamp ofthe character illustrated in my before-mentioned application, wherein aWelsbach burner is employed. This burner is sup ported directly on theconduit B, and, as before explained, my present invention has for itsobject to enable this burner to be accurately centered in the lamp frameand globe. To accomplish this end, I mount in the upper end of the posta double-cam arrangement, one controlling the other, and itselfcontrolled by the aperture into which it fits. Through these double camsI form an aperture of approximately the size and for the passage of thepipe or conduit B. The larger of the cams (lettered D in the drawings)seats directly in the upper end of the lamp-post and is provided with arelatively large aperture, and for convenience in constructing the device it is in the form of a'circular disk with a relatively largeeccentric aperture (1 there in, and downwardly-er;tendin g flanges orprojections (1', arranged with their outer or bearing-surfacesconcentric with the periphery of the disk. These depending flanges orprojections fit into the end of the lamp-post, and when the disk isturned it will be seen the eccentric aperture therein is moved aroundthe central bore of the said post and may be moved into any position ofadjustment therein. A similarly-formed disk or cam E is arranged abovethe disk or cam D and is provided with a smaller eccentrically-arrangedaperture 6, through which the pipe or conduit passes, and correspondingflanges or projections c, which iit into the aperture d in the largerdisk or cam E.

The position of the pipe or conduit may be varied within the largeraperture in the cam. D by moving the smaller cam, and by moving bothsaid cams or disks D and E, the position of the pipe in the end of thelamp-post spring of the pipe or other disturbing force will not changethe position of the cam or cams, and consequently the pipe will be heldaccurately in its position of adjustment.

I prefer to employ projections e and d rather than continuous flanges,for with such an arrangement it is possible to bring the may be variedat will, and when adjusted the side walls of the aperture in the lowercam in line with the side Wall of the post, and the side walls of theapertures in the two cams in line with each other, as shown in Fig. 2,whereby, as will be understood, a greater range of adjustment isattained.

The lamp-frame may be employed-t0 hold the cams against verticaldisplacement by having overhanging lips 0, although this is immaterial.

The adjusting mechanism it will be seen permits me to center the pipe orconduit regardless of the particular position of adjustment of thelamp-frame, and hence I am e11- abled to accurately center the burner inany of the ordinary lamp-posts.

The device is simple, cheap, and may be applied without difficulty toany of the ordinary posts now in common use.

Having thus described my invention, what I claim as new is-- 1. In acentering device for burners the combination with the post or supportand the two cooperating disks having the eccentric aperture therein anddownwardly-extending flanges bounding a portion only of the periph cryof the apertures; whereby the side walls of the apertures and the wallof the post may be brought in line; as and for the purpose set forth.

2. In a centering device for burners the combination with the post orsupport of the two cooperating disks having eccentric apertures thereinand depending relatively small lugs whereby the side walls of theapertures in the disks and of the support maybe brought in line and thelateral displacement of said disks prevented; substantially asdescribed.

AARON P. STORES.

\Vitnesses:

GEO. I. HANSELL, FRED A. DUNHAM.

